Let me try to explain.
The playlists at i.mjh.nz already do not contain the widevine channels.
eg. https://i.mjh.nz/SamsungTVPlus/gb.m3u8
My kodi addon in theory can support Widevine channels and also want quick access to a short EPG overview. So I generate app.json with everything it needs to use: https://i.mjh.nz/SamsungTVPlus/app.json
I recently allowed that file to contain the widevine channels so I can try get them working in Kodi.
Currently they dont - so Kodi addon was updated to ignore them for now.
All WV channels will have a "license_url" key
However, I forgot this docker container also uses the app.json to generate its playlist.
Its just easier to parse than downloading and modifing the existing playlists.
And it contains every region etc.
Just easier to use that.
So, for a few weeks - the docker container was outputting this widevine channels that just wont work in Channels. I fixed this by skipping them in the docker container.
The end product should basically be the same between docker container or direct playlists.
The docker container does allow filtering channels etc though
UPDATE:
Oh actually, the Widevine channels are showing in the playlists. What the heck...
They shouldnt be. Let me fix that. Sorry!